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206 Uppsatser om Fluid restriction - Sida 5 av 14

Slitage på skogsbilvägar vid virkestransporter

This report discusses questions concerning wear on forest roads. The purpose of the work is to investigate if the wear on the roads will decrease when the speed limit gets lower for the trucks that transport the wood. A normal forest road, class B, was used in the study. In total 5000 m3f timber was transported on the road. Data about the road was measured with a profilograph car before and after the timber transport.

Smart Cylinder : Konceptstudie samt demonstrator för systemövervakning av hydraulcylindrar

Detta examensarbete har utförts på Institutionen för Konstruktions- och Produktionsteknik, avdelningen för Fluid och Mekanisk Systemteknik vid Linköpings Universitet, på uppdrag av CA-Verken AB i Sävsjö.Arbetet är ett första steg i utvecklingen av en ny typ av hydraulcylinder med inbyggd tillståndsövervakning. Arbetet har bestått av en teoretisk studie kring system- och hälsoövervakning av hydraulcylindrar samt konstruktion av en demonstrator, en testrigg, för att testa och verifiera slutsatserna från den teoretiska studien. Studien och demonstratorn har resulterat i ett flertal förslag till hur en framtida produkt skall utformas..

Peritonitis in horses : a retrospective study of 69 cases admitted to a university hospital during a ten year period

Peritonitis is a potentially life-threatening disease in horses. With no published work from Sweden, the objective of the study was to describe the occurrence and demographics of horses with peritonitis and to evaluate the outcome of treatment in terms of short-term survival during a ten-year period in a large clinic in Sweden. Data were examined in a retrospective manner in 69 horses diagnosed with and treated for peritonitis at Universitetsdjursjukhuset (UDS) in Uppsala between 2002-2012. Demographic data examined included age, breed, gender, history, duration of illness before arriving at UDS, reason for seeking veterinary care, initial clinical findings (general state of health, heart rate, respiratory rate, mucous membrane appearance, rectal temperature, abdominal sounds, rectal examination, nasogastric tube results), abdominocentesis results (abdominal fluid analysis including visual inspection, leukocytes and protein, cytology, bacterial culture and sensitivity pattern), complete blood count (CBC), Serum amyloid-A (SAA) upon presentation and a follow up, plasma fibrinogen, plasma protein and albumin, treatments, length of hospitalisation and outcome. All medical records with the diagnosis of peritonitis were extracted from the medical records system Trofast. All records with any other diagnosis code referring to trauma such as rectal tear or ruptured uterus, recent abdominal surgery, external trauma or rupture in the gastrointestinal tract were excluded. To be included in the study, the peritoneal fluid should contain more than 20.000 cells/?L, have a peritoneal protein value of >30 g/L; or have a significantly changed peritoneal fluid sample (orange with increased turbidity or worse) in cases where no data on cells or protein were available. The horses were divided into two groups; one where the peritonitis was deemed to have an idiopathic aetiology (primary peritonitis) and the other group where the peritonitis had a possible aetiology such as intestinal parasites, impaction etc.

Från statisk till följsam webbdesign : Den nya webbteknikens väg till företagen

The IT industry is constantly evolving and requires everyone working with website development to be updated on the latest methods. The web grows larger every day, and more visits are carried out by mobile devices. It is more important than ever for companies to have updated and functional pages that can be used on different platforms. We want to find out how common it is for IT departments and web agencies to embrace the newest technology and also what it takes to get them to move from one technology to another. Responsive web design is a constantly growing new technique that helps web developers developing for different platforms.

Gränserna mellan ornamentik och improvisation är flytande

The catchphrase this project has been; the boundaries between ornamentation and improvisation are fluid.My aim was to focus on my work process, giving me the space and time so develop my design further regarding shape, color and combination of different styles in patterns.This is an explorative project where patterns were created without a predetermined product of which the patterns would be applied. In a later stage the character of the pattern determined which product that would be most suitable for application.It resulted in a collection of patterns for wallpaper and clothing. The motives are foxes, geometrical shapes and squares from a notebook. These motives form an ornamental expression in the patterns with the purpose of embellishment and therefore increase the emotional value of the product..

Underso?kning av tryckfall relaterat till avstånd mellan två 90 graders kro?kar i cirkula?r ventilationskanal

Due to higher standards of living around the world, greater industries and larger infrastructures causes an increase of the global energy consumption. This harvest of energy puts a great stress on the global environment. With this development, it becomes increasingly important to utilize energy resources in the best possible way.Fans are components that are often used in the industry and in households. A common problem is that the fan is oversized. An oversized fan causes an excessive flow, which has to be adjusted in order to achieve the correct flow.

Flygplansavisningens miljöpåverkan vid svenska flygplatser

The aim of this thesis was to answer a number of questions about the environmental consequences of aircraft de-icing. A further aim was to suggest how the environmental consequences due to the release of de-icing fluids can be measured and reduced.The main impact of the aircraft de-icing on the environment is due to the large oxygen demand for the degradation of glycol based de-icing fluids which are released in the environment. The effect of the increase in oxygen demand depends on where the degradation occurs in the ecosystem. In a sensitive ecosystem, the large demand of oxygen could provide an anaerobic environment which would be harmful for many types of organisms.In order to reduce the negative effects of the applied de-icing fluid, there is some type of collection system at every regular airport in Sweden. The methods of collection can be divided into two general groups, hydrological isolation or vacuum sweeper trucks.

Simulering av pneumatisk sänkborrhammare

Denna rapport utgör dokumentationen av ett examensarbete utfört på Atlas Copco Secoroc i Fagersta under handledning av Maskinkonstruktions före detta universitetslektor Håkan Wettergren och Fluid & Mekaniksystems professor Karl-Erik Rydberg och på Atlas Copco Secoroc konstruktör Risto Wisakanto, avdelningschef Thomas Greijer, båda avdelning DTH, samt Secorocs utvecklingschef Lars Holmgren.   Arbetet syftar till att utveckla en simuleringsmodell vilken ska användas vid utveckling av pneumatiska sänkborrmaskiner. Målsättningen var att göra en så bra modell som möjligt, en modell som skulle kunna användas vid utveckling av nya sänkborrmaskiner, och att stegvis förfina en i grunden enkel modell. Första modellen var dock lite för enkel och baserad på teori för slutna system så den gick inte bygga vidare på utan det var enklare att göra en helt ny modell baserad på teori för öppna system. Det var dock inte förgäves att bygga den första modellen utan de geometriska villkoren som använts i den enkla modellen kunde återanvändas i den mer avancerade som tack vare detta relativt snabbt kunde skapas.  Den mer avancerade modellen ger värden som stämmer mycket bra överens med mätresultat vid höga tryck, i detta fall 16 bar. Att modellen inte stämmer överens så bra vid låga tryck kan bero på flera saker, naturligtvis på att faktorer som försummats kanske har stor inverkan vid låga tryck eller att mätvärdena helt enkelt är fel.

Den politiska debatten om yttrandefriheten : -

Abstract: The purpose with this study is to analyse the political debate about freedom of speech in Sweden and Denmark, after the caricatures of the Islamic Prophet Mohammed that the Danish newspaper Jyllandsposten published in September 2005. For this debate four political parties have been chosen. These are: Socialdemokratiska Partiet and Moderata Samlingspartiet in Sweden and Socialdemokraterne and Venstre in Denmark.An idea analysis has been chosen as method, and dimensions as an analysing tool. The overall result of the analysis is that right- and left political parties in Sweden and Denmark are more alike, than different in their political debate about free speech. They all wish for total freedom of speech, and see that as the foundation of the democratic society.

Konvertering från luft till vätskekylning av elektronik

A Swedish electronics company wants to make the cooling of one of their electronic components more efficient. They propose that a retrofit liquid cooler is the way to achieve this goal. The current air cooling has high energy cost due to the high amount of power needed to power fans and heat exchangers. Using high volumes of air for cooling also leads to noise pollution. The conversion from air to liquid cooling would possibly make the operation of the electronics more cost efficient and less noisy.The purpose of this project is to theoretically evaluate different concepts of drawing the heat generated by the electronic component in to a fluid, using numerical calculations in Matlab and FEM simulations in ANSYS.

Utveckling av dataanalysprogram för Opcon Powerbox

Opcon Powerbox is a product developed by Opcon together with the underlying company SRM (Svenska Rotor Maskiner) where surplus heat from the industry is used through an Organic Rankine Cycle (ORC)?process to produce electricity. An ORC-process is a thermodynamic circle process in which a refrigerant is used as the working fluid. The refrigerant makes it possible for the circle process to operate at lower temperatures than the conventional Rankine process.In this master?s thesis a data analysis software for the Opcon Powerbox has been developed in which measurement data is retrieved and handled from the Opcon Powerbox.

Vad tillför konstruktiv oro till kognitiv beteendeterapi för primär insomni? : En konstruktiv behandlingsstudie med single subject-design

Kognitiv beteendeterapi för primär insomni är inte lika effektivt som KBT för annan problematik. Behandlingen har mest fokuserat på förändring av sömn och bortsett från andra faktorer som kan bidraga till problematiken. Denna studie syftade till att utvärdera effekten av att addera en intervention mot en ytterligare faktor, nämligen oro, till behandling. Studien hade en single subject-design med två betingelser, med och utan oroshantering, för- och eftermätning och sju deltagare. Resultaten tyder på att metoden konstruktiv oro tillförde bättre utfall på sömn, oro och daglig funktion.

En ny metod för intraoral röntgenundersökning på häst :

A method for equine intra oral radiology has been tested. In the study, both a digital system with an intraoral sensor connected to a laptop and a system utilizing image plates and digital developing was tested, initially on cadaver sculls and finally on sedated horses. The digital sensor was not considered viable for this purpose, while the system with image plates and digital developing worked very well. Two different techniques, i.e. parallel and bisectris, are suggested for the best visualization of different parts of the teeth. Intra carious injections of Mixobar oesophaghus contrast fluid was found useful when evaluating the extent of carious lesions. Compared to extra oral radiology, the new method had several advantages and can be used both in clinic and field practices..

Bakre skallgropens form hos hund : en studie av occipital hypoplasi hos hund

Chiari type I malformation is a condition in humans characterized by a small posterior cranial fossa, downward herniation of the cerebellar tonsils, foramen magnum overcrowding and disturbances of cerebrospinal fluid dynamics. Syringohydromyelia is often seen in patients with Chiari type I malformation. Syringohydromyelia is characterized by fluid-filled cavities in the spinal cord. This causes damage to the nervous tissue in the spinal cord. In recent years, a condition similar to Chiari type I malformation has been recognized in dogs. It has mostly been seen in Cavalier King Charles spaniels (CKCS). The condition seen in dogs is usually called occipital bone hypoplasia. The aim of the study was to examine whether there is a difference in the shape of the caudal fossa between CKCS, small bred dogs with a similar head shape and dogs with a normal head shape and if occipital bone hypoplasia is related to a head shape with a steep back of the head. Other aims of the study were to examine the crowding of nervous tissue in the foramen magnum in each breed group, the extent of syringohydromyelia and to what extent the malformation had caused neurological signs. Sculls from dogs on autopsy were divided in halves and the position of the cerebellum compared to the level of the foramen magnum was studied.

Läsinlärning och självförtroende : Hur kan barns självförtroende påverkas vid läsinlärning?

In what French philosopher Gilles Deleuze labelled Control Societies, mechanisms reminiscent of censorship ? that is, restriction of information that administrators of power wish to regulate the spreading of ? are present in the concept of copyright. This kind of censorship has theadvantage of not being scrutinized by public eyes in the way that the work of institutionalized censorship agencies such as the Swedish Statens Biografbyrå was. It is not unlikely that expanded possibilities for punishing anyone who spreads copyrighted material will result in larger and larger areas that may not be accessed, as the avoiding of conflict and repressive actions will emphasize the behaviour to take detours around information that is deemed taboo and therefore suspicious and dangerous.The ACTA trade agreement is one proposed tool for such extended possibilities for punishment. This essay does not however claim that copyright and censorship are the same ? but rather that the institutional execution of power that was previously a matter of state censorship has a lot of similarities with current and prognosticated application of copyright laws by corporations.While claiming to protect the individual, the disciplinary power executed actually aims to protect the one executing it; the purpose of the power structure is to replicate itself..

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